AK4497 Datasheet, PDF (12/98 Pages) Asahi Kasei Microsystems – Quality Oriented 32-Bit 2ch DAC

[AK4497]
■ Sharp Roll-Off Filter Characteristics (fs = 44.1kHz)
(Ta=-40~85C; VDDL/R=4.75  5.25V, AVDD= TVDD=3.0 3.6V, DVDD=1.7~1.98V; Normal Speed
Mode; DEM=OFF; SD bit=“0”, SLOW bit=“0”)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
Frequency Response
(Note 18)
0.01dB
PB
6.0dB
-
0
20.0
kHz
-
22.05
-
kHz
Passband
(Note 19)
PB
0
20.0
kHz
Stopband
(Note 19)
SB
24.1
kHz
Passband Ripple
(Note 20)
PR
0.005
dB
Stopband Attenuation
(Note 19)
SA
100
dB
Group Delay
GD
-
29.2
-
1/fs
Digital Filter + SCF
(Note 18)
Frequency Response: 0  20.0kHz
-
+0.1/-0.2
-
dB
Sharp Roll-Off Filter Characteristics (fs=96kHz)
(Ta=-40~85C; VDDL/R=4.75  5.25V, AVDD= TVDD=3.0 3.6V, DVDD=1.7~1.98V; Double Speed
Mode; DEM=OFF; SD bit=“0”, SLOW bit=“0”)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
Frequency Response
0.01dB
PB
0
43.5
kHz
(Note 18)
6.0dB
-
48.0
-
kHz
Passband
(Note 19)
PB
0
43.5
kHz
Stopband
(Note 19)
SB
52.5
kHz
Passband Ripple
(Note 20)
PR
0.005
dB
Stopband Attenuation
(Note 19)
SA
100
dB
Group Delay
GD
-
29.2
-
1/fs
Digital Filter + SCF
(Note 18)
Frequency Response: 0  40.0kHz
-
+0.1/-0.6
-
dB
Sharp Roll-Off Filter Characteristics (fs=192kHz)
(Ta=-40~85C; VDDL/R=4.75  5.25V, AVDD= TVDD=3.0 3.6V, DVDD=1.7~1.98V; Quad Speed Mode;
DEM=OFF; SD bit=“0”, SLOW bit=“0”)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Digital Filter
Frequency Response
0.01dB
-
0
87.0
kHz
(Note 18)
6.0dB
-
-
96.0
-
kHz
Passband
(Note 19)
PB
0
87.0
kHz
Stopband
(Note 19)
SB
105
kHz
Passband Ripple
(Note 20)
PR
0.005
dB
Stopband Attenuation
(Note 19)
SA
100
dB
Group Delay
GD
-
29.2
-
1/fs
Digital Filter + SCF
(Note 18)
Frequency Response: 0  80.0kHz
-
+0.1/-2.0
-
dB
Note 18. Frequency response refers to the output level (0dB) of a 1kHz, 0dB sine wave input.
Note 19. The passband and stopband frequencies scale with fs. For example, PB=0.4535×fs (@0.01dB),
SB=0.546×fs.
Note 20. The first step of the Interpolator. This is a passband gain amplitude of the 4 times oversampling
filter.
Note 21. The calculating delay time which occurred by digital filtering. This time is from setting the
16/20/24/32 bit data of both channels to the output of analog signal.
Rev. 0.1
- 12 -
2015/11